Home / 198,189.37-273,386.94-126,488.57

Finding the Fourth Proportional to 198,189.37, 273,386.94 and 126,488.57

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Solution

The fourth proportional to 198,189.37, 273,386.94 and 126,488.57 is: 174,481.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,189.37 : 273,386.94 = 126,488.57 : x
  2. Step 2: Convert to fraction form
    198,189.37/273,386.94 = 126,488.57/x
  3. Step 3: Cross multiply
    198,189.37x = 273,386.94 × 126,488.57
  4. Step 4: Simplify right side
    198,189.37x = 34,580,323,097.28
  5. Step 5: Solve for x
    x = 34,580,323,097.28/198,189.37
  6. Step 6: Final answer
    x = 174,481.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.